IIRC, Trayvon Martin’s cell phone was double encrypted. It took 6 months to break the encryption on it...but they did. And then the judge ruled it couldn’t be used due to authentication issues.
Sometime after that, someone at the states attorneys office shipped Trayvon’s phone to a law enforcement agency in California for analysis. The agency was “seemingly able” to access the internal memory. The state refuses to give the defense any information as to who at the states attorneys office decided to do this, the name of the agency it was sent to, the identity of the analyst who obtained the data, or the results obtained.
After the unnamed agency returned the phone, during the first week of January, 2013, the state sent it to Cellebrite in New Jersey for analysis. Cellebrite also was able to access the internal memory, and the state provided the defense with the results on January 18. The defense says Cellebrite obtained an “enormous” amount of information from the internal memory. But, guess what's missing? All data for Feburary 26, the day/evening of the shooting.
That's an excerpt from the Talk Left blog. So, it was even more cunning than Crump’s shenanigans.